guezoloic/t3dsr
1
0
Fork 0
mirror of https://github.com/guezoloic/t3dsr.git synced 2026-01-25 12:34:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat: add mat4 init functions

Browse Source
This commit is contained in:
Loïc GUEZO
2025-07-04 06:41:15 +02:00
parent 8b14924da3
commit bdd4bd3e40
6 changed files with 96 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
src/math/mat4.c
View File

@@ -1,27 +1,69 @@
// #include "mat4.h"
// #include "math.h"
#include "mat4.h"
// Mat4_t mat4(const float arr[16])
// {
// Mat4_t mat;
// memcpy(mat.m, arr, 16*sizeof(float));
// return mat;
// }
Mat4f_t mat4f_from_array(const float arr[16])
{
Mat4f_t mat;
for(int i = 0; i<MAT_SIZE; i+=4) {
#if defined (SIMD_X86)
__m128 line = _mm_load_ps(&arr[i]);
_mm_store_ps(&mat.m[i], line);
#elif defined (SIMD_ARCH)
float32x4_t line = vld1q_f32(&arr[i]);
vst1q_f32(&mat.m[i], line);
#else
for(int j = 0; j<4; j++) {
mat.m[i+j] = arr[i+j];
}
#endif
}
return mat;
}
// Mat4_t mat4_zro(void)
// {
// return (Mat4_t){0};
// }
Mat4f_t mat4f_scalar(float f)
{
Mat4f_t mat;
for(int i = 0; i<MAT_SIZE; i+=4) {
#if defined (SIMD_X86)
__m128 line_scalar = _mm_set1_ps(f);
_mm_store_ps(&mat.m[i], line_scalar);
#elif defined (SIMD_ARCH)
float32x4_t line_scalar = vdupq_n_f32(f);
vst1q_f32(&mat.m[i], line_scalar);
#else
for(int j = 0; j<4; j++) {
mat.m[i+j] = f;
}
#endif
}
return mat;
}
Mat4f_t mat4f_zero()
{
#if defined (SIMD_X86)
Mat4f_t mat;
for(int i = 0; i<MAT_SIZE; i+=4) {
__m128 line_zero = _mm_setzero_ps();
_mm_store_ps(&mat.m[i], line_zero);
}
return mat;
#else
return mat4f_scalar(0.f);
#endif
}
Mat4f_t mat4f_identity()
{
Mat4f_t mat = mat4f_zero();
mat.m[0] = 1.f;
mat.m[5] = 1.f;
mat.m[10] = 1.f;
mat.m[15] = 1.f;
return mat;
}
// Mat4_t mat4_ity(void)
// {
// return (Mat4_t) {{
// 1, 0, 0, 0,
// 0, 1, 0, 0,
// 0, 0, 1, 0,
// 0, 0, 0, 1,
// }};
// }
// Mat4_t mat4_add(const Mat4_t* m1, const Mat4_t* m2)
// {